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专利名称：Timepiece having an inductive or capacitive
sensor for detecting at least one angularposition of gear-wheel within the timepiece
发明人：BORN, JEAN-JACQUES,FARINE, PIERRE-ANDRE,PASSERAUB, PHILIPPE
申请号：EP98110729.5申请日：19980611公开号：EP0952426A1公开日：19991027
专利附图：
摘要：The mechanism uses a toothed wheel, with a single aperture defining a
reference position. The clock mechanism comprises a movement (2) for controlling ananalogue display (14). The wheel (4) associated with this movement comprises a plate (8)with a toothed edge (6) mounted on a shaft (10). A device for detection of the angularposition of this wheel comprises a magnetic or capacitive sensor whose detectorcomprises a plane spiral coil (24). This detects the variation in presence of the
nonmagnetic conducting material of the plate, which includes at least one opening (16)located in intermediate region between the central hole (18) and the toothed edge. Thisopening defines a reference half-axis for the wheel whose angular position can bedetected.
申请人：ASULAB S.A.
地址：Faubourg du Lac 6 CH-2501 Bienne CH
国籍：CH
代理机构：Balsters, Robert
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